Add the exemptions gestion and improve the navigation between requests

backend/src/main/java/ovh/herisson/Clyde/EndPoints/Inscription/RequestsController.java

@@ -88,6 +88,28 @@ public class RequestsController {
         return new ResponseEntity<>(toReturn, HttpStatus.OK);
     }
 
+    @GetMapping(value = "/exemptionsreq/{id}")
+    public ResponseEntity<ExemptionsRequest> getExemptionRequestbyId(@RequestHeader("Authorization") String token, @PathVariable long id){
+        if (authServ.isNotIn(new Role[]{Role.Admin,Role.Secretary,Role.InscriptionService},token))
+            return new UnauthorizedResponse<>(null);
+
+        ExemptionsRequest exemptionsRequest = err.findById(id);
+
+        return new ResponseEntity<>(exemptionsRequest, HttpStatus.OK);
+    }
+
+    @PatchMapping(value = "/exemptionsreq/{id}/{newstate}")
+    public ResponseEntity<String> changeExemptionReqState(@RequestHeader("Authorization") String token, @PathVariable long id, @PathVariable RequestState newstate){
+        if (authServ.isNotIn(new Role[]{Role.Admin,Role.Secretary,Role.InscriptionService},token))
+            return new UnauthorizedResponse<>(null);
+
+        ExemptionsRequest exemptionsRequest = err.findById(id);
+        exemptionsRequest.setState(newstate);
+        err.save(exemptionsRequest);
+
+        return new ResponseEntity<>(HttpStatus.OK);
+    }
+
     //Get all the scholarships requests
     @GetMapping(value = "/scholarshipreq")
     public ResponseEntity<ArrayList<ScholarshipRequest>> getAllScholarshipRequests(@RequestHeader("Authorization") String token){